In-hospital mortality in SARS-CoV-2 stratified by gamma-glutamyl transferase levels
Affiliations
Affiliations
- Department of Infectious Diseases, Infectious Diseases Hospital, Shuwaikh Medical Area, Kuwait.
- Department of Cardiology, Sabah Al Ahmed Cardiac Centre, Al Amiri Hospital, Kuwait City, Kuwait.
- Department of Mathematics and Statistics, University of Strathclyde, Glasgow, UK.
- Department of Endemic and Infectious Diseases, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.
- Division of Gastroenterology, Department of Medicine, Al Sabah Hospital, Shuwaikh Medical Area, Kuwait.
- Division of Gastroenterology, Department of Medicine, Jaber Al Ahmed Hospital, South Surra, Kuwait.
- Department of Medicine, Al Adan Hospital, Hadiya, Kuwait.
- Department of Medicine, Farwaniya Hospital, Farwaniya, Kuwait.
- Department of Medicine, Mubarak Al-Kabeer Hospital, Jabriya, Kuwait.
- Department of Obstetrics and Gynaecology, Maternity Hospital, Shuwaikh Medical Area, Kuwait.
- Department of Medicine, Al Amiri Hospital, Kuwait City, Kuwait.
- Department of Internal Medicine with the Subspecialty of Cardiology and Functional Diagnostics Named after V.S. Moiseev, Institute of Medicine, Peoples' Friendship University of Russia (RUDN University), Moscow, Russian Federation.
Abstract
Background: This study investigates in-hospital mortality amongst patients with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its relation to serum levels of gamma-glutamyl transferase (GGT).
Methods: Patients were stratified according to serum levels of gamma-glutamyl transferase (GGT) (GGT<50 IU/L or GGT≥50 IU/L).
Results: A total of 802 participants were considered, amongst whom 486 had GGT<50 IU/L and a mean age of 48.1 (16.5) years, whilst 316 had GGT≥50 IU/L and a mean age of 53.8 (14.7) years. The chief sources of SARS-CoV-2 transmission were contact (366, 45.7%) and community (320, 40%). Most patients with GGT≥50 IU/L had either pneumonia (247, 78.2%) or acute respiratory distress syndrome (ARDS) (85, 26.9%), whilst those with GGT<50 IU/L had hypertension (141, 29%) or diabetes mellitus (DM) (147, 30.2%). Mortality was higher amongst patients with GGT≥50 IU/L (54, 17.1%) than amongst those with GGT<50 IU/L (29, 5.9%). More patients with GGT≥50 required high (83, 27.6%) or low (104, 34.6%) levels of oxygen, whereas most of those with GGT<50 had no requirement of oxygen (306, 71.2%). Multivariable logistic regression analysis indicated that GGT≥50 IU/L (odds ratio [OR]: 2.02, 95% confidence interval [CI]: 1.20-3.45, p=0.009), age (OR: 1.05, 95% CI: 1.03-1.07, p<0.001), hypertension (OR: 2.06, 95% CI: 1.19-3.63, p=0.011), methylprednisolone (OR: 2.96, 95% CI: 1.74-5.01, p<0.001) and fever (OR: 2.03, 95% CI: 1.15-3.68, p=0.016) were significant predictors of all-cause cumulative mortality. A Cox proportional hazards regression model (B = -0.68, SE =0.24, HR =0.51, p = 0.004) showed that patients with GGT<50 IU/L had a 0.51-times lower risk of all-cause cumulative mortality than patients with GGT≥50 IU/L.
Conclusion: Higher levels of serum GGT were found to be an independent predictor of in-hospital mortality.
Keywords: COVID-19; SARS-CoV-2; gamma-glutamyl transferase; in-hospital mortality.
Conflict of interest statement
No conflict of interest to disclose for any author on this manuscript.
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